CAJ | 학술논문

对西龙池下水库的坝体主堆石料和坝基覆盖层料进行蠕变试验研究,对其蠕变机制和模型进行探讨,并对蠕变模型参数的影响因素和取值范围进行分析.西龙池下水库主堆石料和覆盖层料的轴向和体积蠕变特性可以用幂函数来描述,式中的模型参数可根据试验得到的蠕变特性确定.主堆石料的轴向初始蠕变a随着应力水平的提高而增大,可以用指数函数描述,其轴向蠕变指数b随着应力水平的提高而明显减小,可以用线性函数描述.根据试验成果,给出其他参数的取值范围.
대서룡지하수고적패체주퇴석료화패기복개층료진행연변시험연구,대기연변궤제화모형진행탐토,병대연변모형삼수적영향인소화취치범위진행분석.서룡지하수고주퇴석료화복개층료적축향화체적연변특성가이용멱함수래묘술,식중적모형삼수가근거시험득도적연변특성학정.주퇴석료적축향초시연변a수착응력수평적제고이증대,가이용지수함수묘술,기축향연변지수b수착응력수평적제고이명현감소,가이용선성함수묘술.근거시험성과,급출기타삼수적취치범위.
The creep behaviors and models of Xilongchi main rockfill and dam foundation gravel are studied through triaxial creep tests. The factors and value range of creep model parameters are analyzed. Based on the test results,the axial and volumetric creep characteristics can be described by a power function in which model parameters are determined by test for creep characteristics. With the stress level increasing,the initial axial creep a of the main rockfill increases while the axial creep strain exponential b decreases obviously,which can be described by exponential function and linear function respectively. The change ranges of the other parameters are achieved by the test results.